烧结矿冷却过程的实验研究

Experimental Study on Cooling Process of Sinter

建立了烧结矿冷却过程的实验平台,研究了烧结矿冷却过程的基本规律及其影响因素.结果表明,冷却空气流量与烧结矿料层厚度是影响冷却过程的主要因素.保持料层厚度一定,随着冷却空气流量的增加,流经料层的热空气温度逐渐下降,热空气所携带的热量开始增加,而后达到峰值,之后逐渐降低,即冷却空气流量存在一适宜值,在这一流量下,热空气所携带的热量最大.保持鼓风机开启度不变,随着料层厚度的增加,热空气的温度逐渐增加。

An experimental setup was provided to investigate the cooling process of sinter and relevant influencing factors on the process.The results showed that the cooling air flowrate and thickness of sinter bed are both the main factors.With the thickness of sinter bed kept unchanged and increasing cooling air flowrate,the temperature of hot air passing through the sinter bed decreases gradually,while the sensible heat of hot air begins to increase and comes up to its peak value,then decreases gradually.It implies that there is an appropriate value at which the hot air carries maximum.Moreover,keeping up the opening of air-blower constant,the hot air temperature increases gradually with the increasing thickness of sinter bed,and there is an appropriate value of the thickness,too.The appropriate thickness and appropriate cooling air flowrate affect and constrain mutually.